html {
    height: 100%;
    overflow-x: hidden;
    background: #f5f5f5;
    color: #444444;
    font: 14px/24px Helvetica !important;
}

body {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    position: relative;
    z-index: 0;
    width: 100%;
    max-width: 640px;
    min-height: 100%;
    margin: 0 auto;
    overflow-x: hidden;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

div,
ul,
li,
p {
    margin: 0;
    padding: 0;
    outline: none;
}

em,
strong {
    font-style: normal;
    font-weight: normal;
}

ul {
    list-style: none;
}

h1 {
    font-size: 55px;
    margin-top: 30px;
    color: white;
    text-align: center;
}